======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '95'
                                          'artist'  'Rachel Grimes'
                                     'text_people'  ''
                                         'release'  'The Clearing'
                                           'title'  'The Air'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['contemporary classical', 'neoclassical', 'piano', 'cinematic', 'ambient']"
                                     'discogstags'  "['classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '12'
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '145.6'
                                             'key'  '3B'
                                        'acoustid'  'aec81904-b9b9-4008-9803-20fdec4bb1df'
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Clearing'
'TBPM' (BPM (beats per minute))                     '145.6'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TDOR' (Original release time)                      '2015'
'TDRC' (Recording time)                             '2015-05-26'
'TENC' (Encoded by)                                 'Exy'
'TIT2' (Title/songname/content description)         'The Air'
'TKEY' (Initial key)                                '3B'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Rachel Grimes'
'TPE2' (Band/orchestra/accompaniment)               'Rachel Grimes'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Temporary Residence Limited'
'TRCK' (Track number/Position in set)               '1/12'
'TSO2'                                              'Grimes, Rachel'
'TSOP' (Performer sort order)                       'Grimes, Rachel'
'TXXX:Acoustid Id'                                  'aec81904-b9b9-4008-9803-20fdec4bb1df'
'TXXX:MusicBrainz Album Artist Id'                  '5cd341c1-2b4b-4296-a5c8-147fcb7b2e4e'
'TXXX:MusicBrainz Album Id'                         'bd78f734-4e95-4d4c-bee1-779ec92706d7'
'TXXX:MusicBrainz Album Release Country'            'XW'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5cd341c1-2b4b-4296-a5c8-147fcb7b2e4e'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'classical'
'TXXX:lastfmtags'                                   ['contemporary classical', 'neoclassical', 'piano', 'cinematic', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.71 dB'
'TXXX:replaygain_track_peak'                        '0.568691'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'77c3daa1-fe40-4616-b24e-376d8c4f5175')

========================== row from database ==========================
                                              'id'  1376165
                                            'path'  /data/Music/Bulk/00poprockelectronic/00ambient/Rachel Grimes - The Clearing 2015/01 - The Air.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  95
                                           'genre'  electronic-ambient
                                        'filesize'  3868099
                                           'mtime'  1636910795
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00ambient 2015 01 electronic ambient
                                      'tag_artist'  Rachel Grimes
                                     'tag_release'  The Clearing
                                       'tag_title'  The Air
                                             'bpm'  145.6
                                    'search_title'  'air':2 'the':1
                                   'search_artist'  'grimes':2 'rachel':1
                                  'search_release'  'clearing':2 'the':1
                                     'search_rest'  '00ambient':2 '00poprockelectronic':1 '2015':3 'ambient':5 'electronic':4
                                    'search_combo'  '00ambient':8 '00poprockelectronic':7 '2015':9 'air':2A 'ambient':11 'clearing':6C 'electronic':10 'grimes':4B 'rachel':3B 'the':1A,5C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['contemporary classical', 'neoclassical', 'piano', 'cinematic', 'ambient']
                                        'tag_date'  2015
                                     'discogstags'  ['classical']

============================== file details ==============================
                                           'mtime'  1636910794.570533  (2021-11-14 18:26:34)
                             'size'  3868099